Kneading-machine



(No Model.)

V.' STIREWALT.

KNEADING MACHINE.

No. 358,758. PatentedMar. 1, 1887.

WITNES (1,: ji W I i qnm LL Ilnrrnn STATES PATENT OFFICE.

VALENTINE STIRElVALT, OF DAVIDSON COLLEGE, NORTH CAROLINA.

KNEADING- MACHINE.

FJPECIFICATION forming part of Letters Patent No. 358,758, dated March 1, 1887.

Application filed August 7, 1886.

T0 aZZ whom it may concern:

Be it known that I, VALENTINE STIREWALT, a citizen of the United States, and a resident of Davidson College, in the county of Mecklenburg and State of North Carolina, have invented certain new and useful Improvements in Kneading Machines; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, which form a part of this specification, and in which- Figure l is a perspective view of myl111- proved kneading-machine. Fig. 2 is a longitudinal vertical sectional view of the same; and Figs. 8, 4, and 5 are perspective views of the parts of the machine separated.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to that class of kneading machines in which the dough or other article to be kneaded is placed upon a table or trough traveling longitudinally upon a suitable support under a revolving fluted roller; and it consists in the improved construction and combination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates a frame supported in any suitable manner, and provided with two uprights, B B, having transverse bearings O in their upper ends.

Transverse rollersD are j ournaled with their trunnions in the side pieces of this frame, so that their tops project slightly above the top of the frame. The table or trough E, consisting of aflatboard having side pieces, G, travels upon these rollers. Each of theside pieces, G, projects above the top of the board E and below its bottom, and are provided upon their edges with cogged racks,prefcrably formed by flat lugs or studs H, secured in the rails at equal distances. Each of the side pieces is further provided at its ends with laterally-projecting studs F.

A fluted roller, I, is journaled with its shaft J in the bearings in the uprights, and has at its ends cog-wheels K K of a smaller diameter than the roller and meshing with the racks, and

Serial No. 210.285. (N0 model.)

the shaft is at one end provided with a crank, L, or similar means for communicating rotary motion to the roller. By having the tops of the rollers D projecting above the top of the frame and having the roller I provided with an offset at each end, formed by making the cog-wheel K of a smaller diameter than the roller; and by having the sides of the trough or table projecting above and below the board, the table is drawn back and forth without the use of additional guides or ways; and by having the studs upon the sides of the side pieces to strike against the uprights B no end pieces are required for the table, thus producing a table which will be easily cleansed and cheaply made.

It will now be seen that when the roller is revolved the cog-wheels upon the same will, by meshing with the racks, move the table or trough longitudinally under the roller upon the rollers in the frame, and the table will, on account of the cog-wheels being smaller in diameter than the fluted roller, travel with a slower speed than the fluted periphery of the roller, causing the roller to move the dough upon the table or trough toward the end of the same with a greater speed than the table travels, thus causing the dough to be massed toward that end, and when the motion is reversed the fluted roller will again draw the dough witha greater speed to the other end, at the same time striking the dough with its flutes or ribs at new places, where it was not touched during the last movement, the roller in this manner kneading the dough thoroughly and continually massing it to the end toward which the table travels, the different speeds of the table and of the periphery of the roller causing a drawing of the dough and a thorough kneading on account of the flutes or ribs of the roller striking the dough at new places at each reversion of the motion.

This device may be used in kneading dough for baking purposes, or for kneading butter or other articles requiring kneading or working, and the relative sizes of the roller and of the cog-wheels may be changed according to the character of the article to be kneaded.

I I am aware that it is not new to move kneading-tables back and forth by means of a cogwheel and rack, or to move the table and pieces of the frame, a kneading-roller, and means, substantially as described, for operating the same.

kneading-roller at different rates of speed; and I do not claim such construction,broadly but I claim and desire to secure In a kneading-machine, the combination of 5 a frame having rollers journaled in it, said my own I have hereunto affixed my signature rollers projecting above the frame, a table or in presence of two witnesses. trough consisting of a bar and two side pieces projecting above the top and below the bottom VALENTINE STIRE WALT of said bars, the projection below the bottom Witnesses:

IO of the board adapting it to be guided by the i W. A. WVITHERS,

ends of the rollers projecting above the side i J. R. WITHERS.

In testimony that I claim the foregoing as 15 

